Embrittlement ntawm tshav kub - cuam tshuam cheeb tsam hauv Vuam

 

 

 

Tom qab phosphorus segregates ntawm cov ciam teb nplej, lub zog khi ntawm cov ciam teb yuav raug txo. Cov ciam teb nplej ua lub luag haujlwm tseem ceeb hauv cov txheej txheem deformation ntawm cov ntaub ntawv, thiab qhov tsis muaj zog ntawm cov ciam teb uas tshwm sim los ntawm phosphorus tsub kom lub brittleness ntawm cov ntaub ntawv nyob rau hauv tshav kub - cuam tshuam cheeb tsam. Thaum lub sij hawm ua kom txias tom qab vuam, vim muaj qhov thermal kev nyuaj siab, lub nkig cua sov - cuam tshuam cheeb tsam yuav ua rau cov kab nrib pleb. Piv txwv li, nyob rau hauv ntau txheej welding ntawm carbon steel, yog hais tias cov ntsiab lus phosphorus siab, thermal stress generated los ntawm tom ntej vuam txheej yuav ua rau cov kab nrib pleb tshwm nyob rau hauv lub tshav kub - cuam tshuam cheeb tsam ntawm yav dhau los welding txheej, thiab cov kab nrib pleb yuav txo tau qhov zoo. thiab tag nrho kev ua tau zoo ntawm cov welded sib koom.

 

Txo qhov toughness ntawm Weld hlau

 

Phosphorus yuav yaj hauv cov hlau. Ib yam li nyob rau hauv cov pa roj carbon - steel matrix, phosphorus nyob rau hauv cov hlau weld kuj yuav ua rau lattice distortion. Qhov no lattice distortion yuav impede lub zog ntawm dislocations thiab txo lub toughness ntawm weld hlau.

 

Lub vuam hlau ua lub luag haujlwm tseem ceeb hauv kev sib txuas cov khoom sib txawv hauv cov qauv welded thiab yuav tsum muaj qee qhov tawv tawv kom tiv taus ntau yam kev ntxhov siab. Thaum cov ntsiab lus phosphorus siab, cov hlau vuam yog feem ntau yuav tawg thaum raug rau sab nraud quab yuam xws li nro, dabtsi yog khoov, los yog cuam tshuam. Piv txwv li, nyob rau hauv ib co carbon - steel welded qauv uas dais dynamic loads, xws li cov welded qhov chaw ntawm ib tug crane, yog hais tias lub toughness ntawm cov hlau weld raug txo vim muaj phosphorus, weld tawg yuav tshwm sim thaum siv, uas yuav ua tau. rau kev nyab xeeb xwm txheej.

 

Nce rhiab heev rau Vuam Cracks

 

Vim lub embrittlement ntawm tshav kub - cuam tshuam cheeb tsam thiab txo cov toughness ntawm weld hlau tshwm sim los ntawm phosphorus, rhiab heev ntawm carbon hlau rau vuam tawg yuav nce. Vuam tawg yog ib qho teeb meem loj tshaj plaws hauv cov txheej txheem vuam thiab yuav ua rau kev ncaj ncees ntawm cov welded sib koom ua ke.

 

Nyob rau hauv qhov kev txiav txim ntawm welding stresses (xws li thermal stress, restraint stress, thiab lwm yam), carbon steel nrog ib tug siab phosphorus cov ntsiab lus yog feem ntau yuav ua rau cov kab nrib pleb nyob rau hauv lub tshav kub - cuam tshuam cheeb tsam thiab weld. Cov kab nrib pleb no tej zaum yuav yog cov tawg kub los yog cov kab nrib pleb txias. Kub tawg yog tsim nyob rau hauv lub siab - kub theem ntawm cov txheej txheem vuam, feem ntau yog vim impurity ntsiab xws li phosphorus txo cov solidification kub ntau yam ntawm cov hlau, ua rau ib tug kua zaj duab xis los tsim nyob rau hauv lub weld thaum solidification thiab tawg nyob rau hauv kev ntxhov siab; Cov kab nrib pleb txias yog tsim los ntawm cov txheej txheem txias tom qab vuam thiab muaj feem xyuam rau cov khoom xws li kev nce hauv cov khoom brittleness tshwm sim los ntawm phosphorus thiab hydrogen embrittlement (yog tias hydrogen yog qhia thaum lub sij hawm vuam).

 

 

 

 

 

 

 

Hlau Standard:

BV Cov Cai lossis ABS, DNV, GL, BV, RINA, KR, NK.

Rolling Size:

Thickness * Dav * Ntev 3-200mm * 1220-4200mm * 5000-18000mm

 

 

 

 

 

 

Vim li cas thiaj xaiv peb?
Peb txaus siab rau peb lub peev xwm los muab cov kev cai daws teeb meem rau peb cov neeg siv khoom cov kev xav tau tshwj xeeb.
Peb txheeb xyuas thiab sib piv cov khoom dhau los thiab cov xwm txheej tam sim no ntawm peb BV A500 Steel Phaj, thiab tsim cov txheej txheem tshiab thiab cov txheej txheem.
Peb cov neeg siv khoom ntseeg peb kom xa cov khoom zoo Cold-rolled Steel khoom raws sij hawm thiab ntawm pob nyiaj siv.
Peb nruj me ntsis siv cov kev pab cuam sov so thiab kev xav tom qab muag, ua raws li kev txhim kho kev ua haujlwm zoo.
Peb muab ntau hom Cold-rolled Steel khoom kom tau raws li cov neeg siv khoom xav tau.
Peb ua raws li cov neeg siv khoom-centric thiab hom-taw qhia kev lag luam lub tswv yim, thiab txuas ntxiv muab cov neeg siv khoom txhim khu kev qha thiab cov khoom zoo thiab cov kev pabcuam.
Peb lub Hoobkas tau cog lus los txhawb nqa cov qauv siab tshaj plaws ntawm kev nyab xeeb thiab zoo.
Txhua tus neeg ua haujlwm ntawm peb lub tuam txhab thiab txhua lub tuam haujlwm ua haujlwm ua ke los ua ke kev tswj hwm kev lag luam, kev tshaj lij thev naus laus zis, kev txheeb cais ntau thiab kev kawm ideological.
Peb cov khoom siv Cold-rolled Steel paub txog lawv cov kav ntev thiab kev ntseeg tau.
Kev vam khom rau qhov zoo tshaj plaws thiab muaj txiaj ntsig zoo ntawm cov khoom loj, peb muaj peev xwm ua tau raws li qhov sib txawv ntawm peb cov neeg siv khoom.

Cim npe nrov: bv a500 steel phaj, Tuam Tshoj bv a500 steel phaj lwm tus neeg, hoobkas